2.
Proofs of the Sum and Difference Identities ...
O Rotate ∠ROP so that OP O
lies on the positive x-axis
3.
Proofs of the Sum and Difference Identities ...
O Rotate ∠ROP so that OP O
lies on the positive x-axis
4.
Recall the Even and Odd Identities
The sine and tangent functions are ODD functions.
Cosine is an EVEN function.
sin(-x) = -sin(x) cos(-x) = cos(x) tan(-x) = -tan(x)
5.
Recall the Even and Odd Identities
The sine and tangent functions are ODD functions.
Cosine is an EVEN function.
sin(-x) = -sin(x) cos(-x) = cos(x) tan(-x) = -tan(x)
6.
Now back to our regularly scheduled programming ...
8.
Recall the Even and Odd Identities
The sine and tangent functions are ODD functions.
Cosine is an EVEN function.
sin(-x) = -sin(x) cos(-x) = cos(x) tan(-x) = -tan(x)
How would you show this ...
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